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Hi, I’m Oussama Gharzouni, a passionate Data Engineer with hands-on experience building and optimizing data pipelines and automating ETL workflows. I love designing data models and developing insightful reporting solutions that help teams make informed decisions. Collaboration is key for me, and I enjoy working with cross-functional teams to drive operational excellence and deliver business insights. With a strong focus on data quality and efficiency, I’ve successfully developed automated reporting tools and Power BI dashboards that boost transparency and reporting efficiency. I’m always eager to learn and grow in the data engineering space while contributing to impactful projects.…Hi, I’m Oussama Gharzouni, a passionate Data Engineer with hands-on experience building and optimizing data pipelines and automating ETL workflows. I love designing data models and developing insightful reporting solutions that help teams make informed decisions. Collaboration is key for me, and I enjoy working with cross-functional teams to drive operational excellence and deliver business insights. With a strong focus on data quality and efficiency, I’ve successfully developed automated reporting tools and Power BI dashboards that boost transparency and reporting efficiency. I’m always eager to learn and grow in the data engineering space while contributing to impactful projects.

OUSSAMA GHARZOUNI

Data Scientist, AI Engineer, Developer, +1

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Hi, I’m Oussama Gharzouni, a passionate Data Engineer with hands-on experience building and optimizing data pipelines and automating ETL workflows. I love designing data models and developing insightful reporting solutions that help teams make informed decisions. Collaboration is key for me, and I enjoy working with cross-functional teams to drive operational excellence and deliver business insights. With a strong focus on data quality and efficiency, I’ve successfully developed automated reporting tools and Power BI dashboards that boost transparency and reporting efficiency. I’m always eager to learn and grow in the data engineering space while contributing to impactful projects.…Hi, I’m Oussama Gharzouni, a passionate Data Engineer with hands-on experience building and optimizing data pipelines and automating ETL workflows. I love designing data models and developing insightful reporting solutions that help teams make informed decisions. Collaboration is key for me, and I enjoy working with cross-functional teams to drive operational excellence and deliver business insights. With a strong focus on data quality and efficiency, I’ve successfully developed automated reporting tools and Power BI dashboards that boost transparency and reporting efficiency. I’m always eager to learn and grow in the data engineering space while contributing to impactful projects.

Available to hire

Hi, I’m Oussama Gharzouni, a passionate Data Engineer with hands-on experience building and optimizing data pipelines and automating ETL workflows. I love designing data models and developing insightful reporting solutions that help teams make informed decisions. Collaboration is key for me, and I enjoy working with cross-functional teams to drive operational excellence and deliver business insights.

With a strong focus on data quality and efficiency, I’ve successfully developed automated reporting tools and Power BI dashboards that boost transparency and reporting efficiency. I’m always eager to learn and grow in the data engineering space while contributing to impactful projects.

Skills

Experience Level

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

Arabic

Fluent

French

Advanced

English

Advanced

German

Intermediate

Work Experience

Data Engineer (Working Student) - Compliance Department at Allianz Technology

May 31, 2025 - July 21, 2025

Developed and optimized data pipelines with SQL Server and Excel to enhance data quality and reporting accuracy. Analyzed 3 KPIs on sales, inventory, and profitability to support informed management decisions. Prepared SSIS ETL workflows to automate flat file integration, reducing manual work and errors. Optimized reporting workflows by creating Excel VBA tools, formulas, and pivots, cutting generation time by 50%. Designed data models and Power BI dashboards to visualize KPIs, boosting transparency and reporting efficiency.

Data Analyst (Full Time) - Employees Controller at Teleperformance

December 31, 2022 - July 21, 2025

Built automated pipelines to migrate operational data from flat files and Azure to SQL Server, ensuring data integrity. Formulated SQL views and procedures to enforce business rules and streamline workforce analytics. Led Power BI report and dashboard development to track performance, attendance, payroll, and staffing metrics. Implemented incremental loading to cut data refresh times and optimize report delivery. Collaborated with the operational department to define more than 8 KPIs and improve executive dashboard accuracy, leading to a 90% reduction in decision-making time.

Machine Learning (Intern) - Risk Management at Keyrus

September 30, 2021 - July 21, 2025

Created a real-time blood pressure monitoring system with Python, integrating sensor data via Raspberry Pi and triggering alerts through Twilio for critical health events. Applied Python (Pandas, Matplotlib, Numpy), and basic SQLite to process, display, and store real-time blood pressure. Built a credit risk prediction system using Logistic Regression, achieving 85% accuracy with financial data analysis. Used Python (Pandas, scikit-learn) for data preparation and visualized results with Matplotlib for reporting. Trained a customer churn model with XGBoost in Python, achieving 91% accuracy by analyzing usage patterns, activity, and payment history to improve retention.